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nvme: move ctrl cap to struct nvme_ctrl 

All transports use either a private cache of controller cap or an on-stack
copy, move it to the generic struct nvme_ctrl. In the future it will also
be maintained by the core.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
This commit is contained in:
Sagi Grimberg 2017-06-27 22:16:38 +03:00
parent d858e5f04e
commit 20d0dfe65a
5 changed files with 21 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/nvme/host/fc.c
View File

@ -152,8 +152,6 @@ struct nvme_fc_ctrl {
u64 association_id;
u64 cap;
struct list_head ctrl_list; /* rport->ctrl_list */
struct blk_mq_tag_set admin_tag_set;
@ -2328,7 +2326,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
* prior connection values
*/
ret = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->cap);
ret = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->ctrl.cap);
if (ret) {
dev_err(ctrl->ctrl.device,
"prop_get NVME_REG_CAP failed\n");
@ -2336,9 +2334,9 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
}
ctrl->ctrl.sqsize =
min_t(int, NVME_CAP_MQES(ctrl->cap) + 1, ctrl->ctrl.sqsize);
min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap) + 1, ctrl->ctrl.sqsize);
ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap);
ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
if (ret)
goto out_disconnect_admin_queue;

1
drivers/nvme/host/nvme.h
View File

@ -144,6 +144,7 @@ struct nvme_ctrl {
u32 ctrl_config;
u32 queue_count;
u64 cap;
u32 page_size;
u32 max_hw_sectors;
u16 oncs;

20
drivers/nvme/host/pci.c
View File

@ -1144,8 +1144,7 @@ static void nvme_disable_admin_queue(struct nvme_dev *dev, bool shutdown)
if (shutdown)
nvme_shutdown_ctrl(&dev->ctrl);
else
nvme_disable_ctrl(&dev->ctrl, lo_hi_readq(
dev->bar + NVME_REG_CAP));
nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap);
spin_lock_irq(&nvmeq->q_lock);
nvme_process_cq(nvmeq);
@ -1388,7 +1387,6 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
{
int result;
u32 aqa;
u64 cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
struct nvme_queue *nvmeq;
result = nvme_remap_bar(dev, db_bar_size(dev, 0));
@ -1396,13 +1394,13 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
return result;
dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1, 0) ?
NVME_CAP_NSSRC(cap) : 0;
NVME_CAP_NSSRC(dev->ctrl.cap) : 0;
if (dev->subsystem &&
(readl(dev->bar + NVME_REG_CSTS) & NVME_CSTS_NSSRO))
writel(NVME_CSTS_NSSRO, dev->bar + NVME_REG_CSTS);
result = nvme_disable_ctrl(&dev->ctrl, cap);
result = nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap);
if (result < 0)
return result;
@ -1421,7 +1419,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev)
lo_hi_writeq(nvmeq->sq_dma_addr, dev->bar + NVME_REG_ASQ);
lo_hi_writeq(nvmeq->cq_dma_addr, dev->bar + NVME_REG_ACQ);
result = nvme_enable_ctrl(&dev->ctrl, cap);
result = nvme_enable_ctrl(&dev->ctrl, dev->ctrl.cap);
if (result)
return result;
@ -1865,7 +1863,6 @@ static int nvme_dev_add(struct nvme_dev *dev)
static int nvme_pci_enable(struct nvme_dev *dev)
{
u64 cap;
int result = -ENOMEM;
struct pci_dev *pdev = to_pci_dev(dev->dev);
@ -1892,10 +1889,11 @@ static int nvme_pci_enable(struct nvme_dev *dev)
if (result < 0)
return result;
cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
dev->ctrl.cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
dev->q_depth = min_t(int, NVME_CAP_MQES(cap) + 1, NVME_Q_DEPTH);
dev->db_stride = 1 << NVME_CAP_STRIDE(cap);
dev->q_depth = min_t(int, NVME_CAP_MQES(dev->ctrl.cap) + 1,
NVME_Q_DEPTH);
dev->db_stride = 1 << NVME_CAP_STRIDE(dev->ctrl.cap);
dev->dbs = dev->bar + 4096;
/*
@ -1909,7 +1907,7 @@ static int nvme_pci_enable(struct nvme_dev *dev)
dev->q_depth);
} else if (pdev->vendor == PCI_VENDOR_ID_SAMSUNG &&
(pdev->device == 0xa821 || pdev->device == 0xa822) &&
NVME_CAP_MQES(cap) == 0) {
NVME_CAP_MQES(dev->ctrl.cap) == 0) {
dev->q_depth = 64;
dev_err(dev->ctrl.device, "detected PM1725 NVMe controller, "
"set queue depth=%u\n", dev->q_depth);

10
drivers/nvme/host/rdma.c
View File

@ -118,7 +118,6 @@ struct nvme_rdma_ctrl {
struct blk_mq_tag_set admin_tag_set;
struct nvme_rdma_device *device;
u64 cap;
u32 max_fr_pages;
struct sockaddr_storage addr;
@ -728,7 +727,7 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
set_bit(NVME_RDMA_Q_LIVE, &ctrl->queues[0].flags);
ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap);
ret = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
if (ret)
goto requeue;
@ -1573,7 +1572,8 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl)
set_bit(NVME_RDMA_Q_LIVE, &ctrl->queues[0].flags);
error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->cap);
error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP,
&ctrl->ctrl.cap);
if (error) {
dev_err(ctrl->ctrl.device,
"prop_get NVME_REG_CAP failed\n");
@ -1581,9 +1581,9 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl)
}
ctrl->ctrl.sqsize =
min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->ctrl.sqsize);
min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize);
error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap);
error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
if (error)
goto out_cleanup_queue;

7
drivers/nvme/target/loop.c
View File

@ -48,7 +48,6 @@ struct nvme_loop_ctrl {
struct blk_mq_tag_set admin_tag_set;
struct list_head list;
u64 cap;
struct blk_mq_tag_set tag_set;
struct nvme_loop_iod async_event_iod;
struct nvme_ctrl ctrl;
@ -387,7 +386,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
if (error)
goto out_cleanup_queue;
error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->cap);
error = nvmf_reg_read64(&ctrl->ctrl, NVME_REG_CAP, &ctrl->ctrl.cap);
if (error) {
dev_err(ctrl->ctrl.device,
"prop_get NVME_REG_CAP failed\n");
@ -395,9 +394,9 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
}
ctrl->ctrl.sqsize =
min_t(int, NVME_CAP_MQES(ctrl->cap), ctrl->ctrl.sqsize);
min_t(int, NVME_CAP_MQES(ctrl->ctrl.cap), ctrl->ctrl.sqsize);
error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->cap);
error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
if (error)
goto out_cleanup_queue;